81639504

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{563}}^1$

素因数の和:649

約数の個数: 120

約数和(自身を含む): 245475360

約数和(自身を除く): 163835856

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 53, 57, 72, 76, 106, 114, 144, 152, 159, 171, 212, 228, 304, 318, 342, 424, 456, 477, 563, 636, 684, 848, 912, 954, 1007, 1126, 1272, 1368, 1689, 1908, 2014, 2252, 2544, 2736, 3021, 3378, 3816, 4028, 4504, 5067, 6042, 6756, 7632, 8056, 9008, 9063, 10134, 10697, 12084, 13512, 16112, 18126, 20268, 21394, 24168, 27024, 29839, 32091, 36252, 40536, 42788, 48336, 59678, 64182, 72504, 81072, 85576, 89517, 96273, 119356, 128364, 145008, 171152, 179034, 192546, 238712, 256728, 268551, 358068, 385092, 477424, 513456, 537102, 566941, 716136, 770184, 1074204, 1133882, 1432272, 1540368, 1700823, 2148408, 2267764, 3401646, 4296816, 4535528, 5102469, 6803292, 9071056, 10204938, 13606584, 20409876, 27213168, 40819752, 81639504]

約数ペア:

[(1, 81639504), (2, 40819752), (3, 27213168), (4, 20409876), (6, 13606584), (8, 10204938), (9, 9071056), (12, 6803292), (16, 5102469), (18, 4535528), (19, 4296816), (24, 3401646), (36, 2267764), (38, 2148408), (48, 1700823), (53, 1540368), (57, 1432272), (72, 1133882), (76, 1074204), (106, 770184), (114, 716136), (144, 566941), (152, 537102), (159, 513456), (171, 477424), (212, 385092), (228, 358068), (304, 268551), (318, 256728), (342, 238712), (424, 192546), (456, 179034), (477, 171152), (563, 145008), (636, 128364), (684, 119356), (848, 96273), (912, 89517), (954, 85576), (1007, 81072), (1126, 72504), (1272, 64182), (1368, 59678), (1689, 48336), (1908, 42788), (2014, 40536), (2252, 36252), (2544, 32091), (2736, 29839), (3021, 27024), (3378, 24168), (3816, 21394), (4028, 20268), (4504, 18126), (5067, 16112), (6042, 13512), (6756, 12084), (7632, 10697), (8056, 10134), (9008, 9063)]